<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>

        .column:nth-of-type(1) {

            float:left;
            width: 200px;
            height: 300px;
            margin-right: 10px;
            background-color: red;
        }
        .column:nth-of-type(2) {
            overflow: hidden;
            height:300px;
            background-color: purple;
        }
    </style>
</head>
<body>
    <div class="column"></div>
    <div class="column"></div>
</body>
</html>